Publications by authors named "Tian Xuan"

Backgrounds: Diagnostic prediction is a central application that spans various medical specialties and scenarios, sequential diagnosis prediction is the process of predicting future diagnoses based on patients' historical visits. Prior research has underexplored the impact of irregular intervals between patient visits on predictive models, despite its significance.

Method: We developed the Multi-task Fusion Visit Interval for Sequential Diagnosis Prediction (MISDP) framework to address this research gap.

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Planar microsupercapacitors (MSCs) are of great value for flexible and wearable electronics. The rational design of electrode materials with rapid ionic kinetics and sufficient active site exposure is critical but challenging for realizing high-energy MSCs. Herein, we report the dot-tube-sheet multidimensional heterostructure films (MHFs) with versatile patterns by a simple mask-assisted strategy, consisting of 0D carbon dots (CDs), 1D carboxyl-carbon nanotubes (c-CNTs), and 2D TiC MXene nanosheets.

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Light is the dominant zeitgeber for biological clocks, and its regulatory mechanism for sleep-wake activity has been extensively studied. However, the molecular pathways through which the unique Antarctic light environment, with polar days in summer and polar nights in winter, affects human sleep and circadian rhythm remain largely unidentified, although previous studies have observed delayed circadian rhythm and sleep disruptions among expeditioners during polar nights. In this study, we conducted comprehensive dynamic research on the expeditioners residing in Antarctica for over one year.

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The exacerbation of wildfires caused by global warming poses a significant threat to human health and environmental integrity. This review examines the particulate matter (PM) and gaseous pollutants resulting from fire incidents and their impacts on individual health, with a specific focus on the occupational hazards faced by firefighters. Of particular concern is the release of carbon-containing gases and fine particulate matter (PM) from forest fires and urban conflagrations, which exceed the recommended limits and pose severe health risks.

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We investigated the association between cerebral small vessel disease (CSVD) and ipsilateral leptomeningeal collateral (LMC) status in patients with symptomatic intracranial atherosclerotic stenosis (sICAS). In 108 patients with 50-99% symptomatic intracranial internal carotid artery or M1 middle cerebral artery stenosis, 4 CSVD imaging markers (lacunes, cerebral microbleeds, enlarged perivascular spaces [EPVSs], and white matter hyperintensities [WMHs]) were assessed in MRI. Score of 0 or 1 was assigned to each marker and added up as a summary CSVD score (ranging 0-4) to reflect an overall CSVD burden.

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Aims: Many studies demonstrated reproductive damage in men residing in plains who are exposed to hypoxia at high altitudes. However, little is known about mechanisms between male reproductive impairment and hypobaric hypoxia. Hypoxia is one of the reasons for the imbalance of cellular redox system.

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Introduction: The elevated mortality and hospitalization rates among hemodialysis (HD) patients underscore the necessity for the development of accurate predictive tools. This study developed two models for predicting all-cause mortality and time to death-one using a comprehensive database and another simpler model based on demographic and clinical data without laboratory tests.

Method: A retrospective cohort study was conducted from January 2017 to June 2023.

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Article Synopsis
  • - Structured illumination microscopy (SIM) is a powerful super-resolution imaging technique that allows for real-time imaging of live cells, but the traditional methods can struggle with low signal-to-noise ratios (SNR), leading to inaccuracies in image reconstruction.
  • - The study introduces a new method called physics-enhanced neural network-based parameter-free spatial domain reconstruction (PNNP-SDR), which can reconstruct images directly in the spatial domain without needing high-precision parameter estimation.
  • - PNNP-SDR shows significant improvements, with about a 4 dB increase in peak signal-to-noise ratio (PSNR) compared to traditional methods and is approximately five times faster than existing approaches, making it a promising tool for biomedical super-resolution imaging.
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The present study aimed to explore the role of peroxisome proliferator-activated receptor γ (PPARγ) in the development of deep vein thrombosis (DVT), as well as to discover the potential regulatory mechanism of PPARγ. Human umbilical vein endothelial cells (HUVECs) were treated with modified glycated human serum albumin (M-HSA) to mimic DVT. PPARγ expression and activity were detected using western blot analysis and the corresponding activity detection kit, respectively.

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We report the case of a 22-year-old male who underwent endoluminal surgery and was implanted an Option Elite filter in the superior vena cava (SVC) while the filter retraction hook was attached to the vessel wall. The patient requested to remove the filter after 155 days. Preoperative ultrasonography and CT examination revealed that the filter retraction hook was very likely to penetrate the SVC wall and its tip was very close to the right pulmonary artery.

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Objective: Winter-over expeditioners in Antarctica are challenged by various environmental and psycho-social stress factors, which may induce psychophysiological changes. The autonomic nervous system (ANS) plays a crucial role in the adaptation process under stress. However, the relationship between ANS activity and the mood states of expeditioners remains largely unexplored.

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Objective: To examine the efficacy of antegrade and retrograde approaches with the AngioJet thrombectomy device for the treatment of acute lower limb deep vein thrombosis (DVT) and to evaluate the necessity of filter placement.

Methods: The clinical data of patients with acute lower limb DVT treated with the AngioJet device from January 2021 to June 2023 were retrospectively analyzed. The patients were divided into the antegrade and retrograde treatment groups according to the surgical approach and the direction of valve opening.

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Background: Traumatic proximal tibiofibular fracture and dislocation (PTFD) have been rarely studied and are easily missed in clinical practice. PTFD is considered a marker of severely traumatized knees. The purpose of this study was to retrospectively analyze the incidence and impact of PTFD in traumatized knees with vascular injury.

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Rice is an important food crop throughout the world. Rice bran, the outer layer of rice grain, is a by-product generated during the rice milling process. Rice bran oil (RBO) is extracted from rice bran and has also become increasingly popular.

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Article Synopsis
  • The study aimed to evaluate the effectiveness of physical examinations alongside handheld vascular ultrasound Doppler examination for detecting peripheral vascular injuries in orthopedic trauma patients, as missed diagnoses can lead to severe consequences like amputation or death.
  • Conducted over nearly two years, the research analyzed cases of suspected vascular injuries in an emergency orthopedic department, using angiography as the gold standard for confirming vascular injuries.
  • Results from 55 cases showed a 94.8% confirmation rate for vascular injuries, predominantly from traffic accidents, with knee joint injuries being most common; the study concluded that the combined assessment method can effectively identify these injuries and ultimately help improve patient outcomes.
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Background: Recently, computational fluid dynamics (CFD) has been used to simulate blood flow of symptomatic intracranial atherosclerotic stenosis (sICAS) and investigate the clinical implications of its haemodynamic features, which were systematically reviewed in this study.

Methods: Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses and Meta-analysis of Observational Studies in Epidemiology statements, we searched PubMed and Embase up to March 2024 and screened for articles reporting clinical implications of haemodynamic parameters in sICAS derived from CFD models.

Results: 19 articles met the inclusion criteria, all studies recruiting patients from China.

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Cardiovascular function and adipose metabolism were markedly influenced under high altitudes. However, the interplay between adipokines and heart under hypoxia remains to be elucidated. We aim to explore alterations of adipokines and underlying mechanisms in regulating cardiac function under high altitudes.

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In this research, an ammonium perchlorate/polydopamine (AP/PDA) core-shell composite was prepared in a non-aqueous solution to reduce the mechanical sensitivity of ammonium perchlorate (AP). The result showed that the AP/PDA core-shell composite could be successfully constructed in ethyl acetate solution with an AP recovery rate that reached 86%. The mechanical sensitivity of the obtained AP/PDA core-shell composite was significantly reduced with a PDA content of only 0.

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Limb ischemia is a refractory disease characterized by persistent inflammation, insufficient angiogenesis, and tissue necrosis. Although mesenchymal stem cells (MSCs) have shown potential for treating limb ischemia, their therapeutic effects are limited by low engraftment rates. Therefore, developing an optimal MSC delivery system that enhances cell viability is imperative.

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There may be different mechanisms underlying internal (IBZ) and cortical (CBZ) borderzone infarcts in intracranial atherosclerotic stenosis. In 84 patients with symptomatic, 50-99% atherosclerotic stenosis of M1 middle cerebral artery (MCA-M1) with acute borderzone infarcts in diffusion-weighted imaging, we classified the infarct patterns as isolated IBZ (n = 37), isolated CBZ (n = 31), and IBZ+CBZ (n = 16) infarcts. CT angiography-based computational fluid dynamics models were constructed to quantify translesional, post-stenotic to pre-stenotic pressure ratio (PR) in the MCA-M1 lesion.

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Introduction: Cerebral small vessel disease (CSVD) commonly exists in patients with symptomatic intracranial atherosclerotic disease (sICAD). We aimed to investigate the associations of hemodynamic features of sICAD lesions with imaging markers and overall burden of CSVD.

Patients And Methods: Patients with anterior-circulation sICAD (50%-99% stenosis) were analyzed in this cross-sectional study.

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Article Synopsis
  • - The study presents a Yb:CALYO laser that successfully produces sub-200 fs pulses with over 20-W average power, achieving 153-fs pulses at 21.5 W using an 89 W pump.
  • - It boasts impressive performance metrics, such as a peak power of 1.6 MW and a single pulse energy of 0.27 µJ, along with minimal fluctuations in output power during testing.
  • - Additionally, the laser demonstrated high efficiency in second harmonic generation, achieving 59% conversion efficiency and the highest average output power reported from a femtosecond mode-locked bulk oscillator to date.
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Previous studies that have addressed the growing mental health problems among sexual minorities in mainland China, but failed to inform mental health programs and public health policies with consistent detection results. To obtain robust results on aggregate detection rates and moderators of these problems, we performed a meta-analysis of the related Chinese and English literature published before 2022. Ultimately, 305 eligible studies (n = 127, n = 71, n = 55, n = 13, n = 39) were pooled in the analysis.

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Article Synopsis
  • * Researchers identified 39 genes that encode for SWI/SNF subunits across soybean's chromosomes and found their promoter regions are linked to hormonal and stress responses.
  • * The findings indicate that one specific subunit, GmLFR1, negatively affects drought tolerance, providing a basis for understanding how SWI/SNF complexes influence soybean's ability to cope with drought stress.
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Fatty liver grafts are susceptible to ischemia reperfusion injury (IRI), increasing the risk of biliary complications after liver transplantation (LT). Ferroptosis, a newly recognized programmed cell death, is expected to be a novel therapeutic target for IRI. We investigated whether exosomes derived from heme oxygenase 1-modified bone marrow mesenchymal stem cells (HExos) relieve ferroptosis and protect biliary tracts from IRI in a rat fatty liver transplantation model.

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